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Two gray syringes with measurement markings and rubber caps

Zalman

Zalman ZM-STC7 thermal paste 2-pack 4 g 7.2 W/m·K 220 Pa.s

SKU CH-3JVN-ZSDZK MPN ZM-STC7

Two-pack of 4 g syringes with 7.2 W/m·K conductivity and 220 Pa·s viscosity for CPU and GPU cooling

Quantity 2-Pack

  • 1-Pack
  • 2-Pack
  • 3-Pack
  • 5-Pack
  • 10-Pack

Struck-through versions exist but are not stocked here.

  • 2 W/m·K conductivity moves heat fast from CPU or GPU
  • Non-conductive formula protects components from electrical shorts
  • 220 Pa.s viscosity spreads evenly and stays in place
  • Syringe with scale markings lets you apply the exact amount needed
  • Rubber cap keeps the paste fresh for multiple uses

Zalman STC7 thermal paste 2-pack

The Zalman STC7 thermal paste comes in a two-pack of 4 g syringes with a thermal conductivity of 7.2 W/m·K and viscosity of 220 Pa.s. It is designed for CPU and GPU applications on all cooler types using silicone oil, alumina, aluminum and zinc oxide. The gray compound is electrically non-conductive and RoHS compliant for system safety.

Upgrading from lower-conductivity pastes

Builders replacing basic silicone grease or dried-out factory compound will see improved heat transfer from the 7.2 W/m·K rating. The jump is worth it when the existing paste has degraded or when assembling a new cooler that demands reliable filler density. Buyers who need higher conductivity than 7.2 W/m·K should consider other models in the range.

Syringe application with measuring graduations

The syringe includes scale markings for accurate, visual dosing and a rubber cap that prevents the compound from hardening during storage. Optimum viscosity of 220 Pa.s allows smooth spreading on any chip surface without excessive force. The main risk is applying too much material; a thin, even layer is sufficient for best results.

Highlights

  • 2 W/m·K conductivity moves heat fast from CPU or GPU
  • Non-conductive formula protects components from electrical shorts
  • 220 Pa.s viscosity spreads evenly and stays in place
  • Syringe with scale markings lets you apply the exact amount needed
  • Rubber cap keeps the paste fresh for multiple uses

Specifications

BrandZALMAN
SeriesSTC
ModelSTC 7

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What are the syringe dimensions so I know it fits in my tool drawer?

Each syringe measures 117.4 mm wide, 21.2 mm long and 15 mm high.

How do I apply the paste without wasting it, and what step do people skip?

Use the measuring graduations on the barrel to dispense the right amount, then replace the rubber cap so the compound does not harden.

When will the compound need replacing on my CPU or GPU?

The silicone-oil base with alumina, aluminum and zinc-oxide fillers remains stable for years; replace only if temperatures rise after the paste has dried out.

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